6,000W/3,000W on a 30A circuit with a built-in thermostat and a wall/ceiling bracket — heavy-gauge steel built for a shop that runs every weekend.
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~$176 typical price
Buy on AmazonUse-case guide · 2026
Best heater for a Workshop
A workshop is a garage with more dust, more combustibles, and more hours of use — so the heater should be a proper 240V or gas unit heater mounted out of the way, with a thermostat you can trust to hold 50°F overnight and 65°F while you work. Heater choice is sizing; heater placement is safety.
What this space needs
Heater size needed
10–15 W/sq ft (5,000–6,000W for ~400–500 sq ft insulated)
Type that fits best
Ceiling-mount 240V unit heater (gas for large/uninsulated)
- ▸Mount it high in a corner, angled down across the floor, away from the dust collector's exhaust and the finishing area.
- ▸A thermostat that holds ~50°F overnight keeps glue, finishes, and cast iron happy and prevents the 'everything's freezing' warm-up hour.
- ▸Fine dust and a hot heating element don't mix — keep filters and grilles clean, and no fan-forced heater pointed at the sanding station.
Not sure what size you need? Run your room through the heater sizing tool →
Our picks
If the shop already has a 240V outlet, the King plugs in, includes a bracket, and heats a one-car or shop-corner space without an electrician.
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~$199 typical price
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50,000 BTU of vented natural-gas or propane heat on a wall thermostat — the heater for a barn-sized shop, at a fraction of electric running cost.
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~$453 typical price
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5,000W hardwired for about a hundred dollars — a perfectly good shop heater for occasional use.
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~$108 typical price
Buy on AmazonBefore you buy
- ▸Solvent and finish vapors are flammable; no heater in the finishing area, and ventilate before you heat.
- ▸Hardwired 240V and gas installs are for a licensed electrician or gas fitter; get the permit — it's your insurance that cares.
- ▸A CO alarm in any shop with a combustion heater, and clear the clearance zone around the heater of lumber and sawdust.
Frequently asked questions
Electric or gas for a workshop heater?
Electric 240V (5,000–6,000W) for an insulated shop up to ~500–600 sq ft, especially if you heat it a few times a week — simple install, no venting. Gas (40,000–50,000 BTU) for large or uninsulated shops, or for daily use where running cost matters; it needs a gas line, vent, and pro install.
Is it safe to run a fan-forced heater around sawdust?
With care: mount it away from dust sources, keep its intake and grille clean, never point it at a sanding or finishing area, and shut it down before generating heavy dust clouds. Infrared tube heaters are the commercial answer for very dusty shops.